/// <summary>
/// 查询支持的SQL方法
/// </summary>
/// <param name="dbProvider">数据库提供者（不同数据库的特性）</param>
/// <param name="expBuilder">表达式持久化</param>
/// <param name="name">表名/视图名/存储过程名</param>
internal SqlBuilder(AbsDbProvider dbProvider, ExpressionBuilder expBuilder, string name)
{
DbProvider = dbProvider;
ExpBuilder = expBuilder;
Name = name;
Param = new List<DbParameter>();
Sql = new StringBuilder();
}
/// <summary>
/// 查询支持的SQL方法
/// </summary>
/// <param name="dbProvider">数据库提供者（不同数据库的特性）</param>
/// <param name="expBuilder">表达式持久化</param>
/// <param name="name">表名/视图名/存储过程名</param>
internal OracleSqlBuilder(AbsDbProvider dbProvider, ExpressionBuilder expBuilder, string name) : base(dbProvider, expBuilder, name) { }
/// <summary>
/// 默认构造器
/// </summary>
/// <param name="dbProvider">数据库提供者（不同数据库的特性）</param>
/// <param name="map">字段映射</param>
/// <param name="paramList">SQL参数列表</param>
public InsertVisitor(AbsDbProvider dbProvider, FieldMap map, List<DbParameter> paramList) : base(dbProvider, map, paramList) { }
/// <summary>
/// 查询支持的SQL方法
/// </summary>
/// <param name="dbProvider">数据库提供者（不同数据库的特性）</param>
/// <param name="expBuilder">表达式持久化</param>
/// <param name="name">表名/视图名/存储过程名</param>
public SqlServerSqlBuilder2000(AbsDbProvider dbProvider, ExpressionBuilder expBuilder, string name) : base(dbProvider, expBuilder, name) { }
/// <summary>
/// Select筛选字段时表达式树的解析
/// </summary>
/// <param name="dbProvider">数据库提供者（不同数据库的特性）</param>
/// <param name="map">字段映射</param>
/// <param name="paramList">SQL参数列表</param>
public SelectVisitor(AbsDbProvider dbProvider, EntityDataMap map, List<DbParameter> paramList) : base(dbProvider, map, paramList) { }
/// <summary>
/// 默认构造器
/// </summary>
/// <param name="dbProvider">数据库提供者（不同数据库的特性）</param>
/// <param name="map">字段映射</param>
/// <param name="paramList">SQL参数列表</param>
protected AbsSqlVisitor(AbsDbProvider dbProvider, EntityDataMap map, List<DbParameter> paramList)
{
DbProvider = dbProvider;
EntityMap = map;
ParamList = paramList;
}
/// <summary>
/// 查询支持的SQL方法
/// </summary>
/// <param name="dbProvider">数据库提供者（不同数据库的特性）</param>
/// <param name="expBuilder">表达式持久化</param>
/// <param name="name">表名/视图名/存储过程名</param>
public MySqlSqlBuilder(AbsDbProvider dbProvider, ExpressionBuilder expBuilder, string name) : base(dbProvider, expBuilder, name) { }